Mosaic work.



PATENTED JUL-Y ll, 1905.

H. A. LI'IZ.

MOSAIC WORK.

APPLIOATION FILED AUG. 3, 1904.

GRIMM Lowa UNITED STATES Patented July 11, 1905.

PATENT OEEICE..

HERMAN AUGUST LITZ, OF DANVILLE, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO CARL LITZ, OF DANVILLE, PENNSYLVANIA.

MOSAIC WORK.

SPECIFICATION forming part of Letters Patent NO. 794,523, dated July 11, 1905.

Application filed August 3, 1904. Serial No. 219,386.

To [1f/ZZ whom, t may concern:

Be it known that I, HERMAN AUGUST LITZ,

a citizen of Switzerland, residing at Danville, in the county of Montour and State of Pennsylvania, have invented new and useful. Improvements in Mosaic Work, of which the following is a specification.

This invention relates to improvements in mosaics and in the method of constructing the same, the details of which will be pointed out v in the following specification, taken in connection with the accompanying drawings, in which- Figure l is a top plan view of a mosaic panel made according to my invention, the panel being broken out and shown partly in horizontal section. Fig. 2 is an end view of the panel, partly in section, on the line 2 Q of Fig. 1, this panel and adjacent panels being shown applied to a section of iiooring; and Fig. 8 is a perspective view of the under side of one corner of a panel.

In assembling my improved panel the blocks are arranged in strips or groups, the contiguous blocks of each group being connected by intermediate doweling devices having teeth or points which are driven horizontally into the meeting faces of the blocks, and the adjacent groups of blocks are similarly connected together by intermediate toothed or serrated sheet-metal doweling-strips, each of which enters horizontally into the meeting faces of several blocks in two or more groups. The blocks are preferably arranged with the grain running vertically, and the doweling devices are preferably sheet-metal strips having teeth or serrations at both lateral edges, the strip being sinuous or corrugated in side view, so that it will p ierce the grain of the wood in different planes instead of in astraight line. These doweling devices entering the blocks at right angles to the direction of the grain in the wood do not split the blocks, as they might if the grain extended horizontally` instead of vertically. By means of the doweling devices and the order in which the blocks are assembled the blocks of the panel become tightly interlocked with one another, so

that individual blocks cannot be removed or become loose.

In forming the panel shown in the drawings I connect two blocks A A by an intermediate sheet-metal doweling-strip t having teeth or serrations along its lateral edges, which enter the meeting faces of both blocks, and I connect two blocks B B in a similar manner by a doweling device The doweling devices shown throughout the panel are all of similar shape and preferably they have a zigzag outline in plan View, as shown in Fig. 1, and a sinuous form in side view, as indicated by the reference-numeral 17 in Fig. 2. The two groups of blocks A A and B B are then connected together by an intermediate dowelingstrip l, the teeth of which, as shown, enter the meeting faces of the two blocks of each group. These two groups form the central part or Square of the panel. A group or series of two/blocks O OQ similarly connected together by an intermediate doweling-strip c, are then joined to the two groups of blocks A A and B Bl by a doweling-strip 2 entering the meeting faces of blocks O O' and the blocks A B. Similarly a group or series of two blocks D Dl are connected together by a doweling device d, and these blocks are then joined to the blocks A B by a doweling device 3 common to all of the blocks. A group or series of blocks E E E2 E3, connected by doweling devices e, arranged between adjacent blocks, is then connected to the previously-assembled groups of blocks by two doweling-strips 4 and 5. The toothed doweling-strip 4, it will be noted, connects two blocks of the group E E, &c., and the blocks C A oftwo otherl two blocks F2 F3, and the blocks B D of two previously-assembled groups. To further enlarge the panel, al group or series of blocks G Gl G2 G3, connected by doweling-strips g, is then connected to the groups E E. &c., F F', &c., and C C by a doweling-strip 8, engaging the two blocks G G' and the blocks E C of two assembled groups and by a doweling-strip 9, engaging' the two blocks G2r G3 and the blocks C F of two assembled groups. In the same manner a group or series of blocks H H H2 H3, connected together by dowelingstrips 7L, are secured to the right-hand side of the panel by a doweling-strip 10, engaging the two blocks H H and the blocks E3 D of two previously assembled groups, and a doweling-strip 11, engaging the two blocks I-l2 H3 and the blocks D F3 of two previouslyassembled groups. 'A group of blocks I to I5, inclusive, connected together by dowelingstrips z', are then connected to the groups G G', cc., E E', &c., and H H, &c., by doweling-strips 12, 13, and 14, each, as shown, engaging two blocks of the group or series l I', &c., and two blocks of the previously-assembled portion of the panel. `rI hedowelingstrip 12 connects two blocks of the group I I', &c., with the blocks G E of two different groups, and the doweling-strip 14 also connects two blocks of the group I I, &c., with blocks E3 H of two different groups.n The central doweling-strip 13 connects the blocks I2 I3 of one group and the blocks E E2 of one other group. In the same manner the group of blocks J to J inclusive, connected together by the doweling-strips j', are secured to the panel by doweling-strips 15, 16, and 17, each engaging' four blocks, and the end doweling-strips 15 and 17, each connecting two blocks of the group J J &c., with blocks of two different groups.

The doweling devices lettered a, c, d, &c., between the opposed faces ofabutting blocks in a group interlock with the blocks and prevent relative movement between such abutting blocks longitudinally of their opposed faces, and the doweling-strips numbered 1 to 17, inclusive, eachV interlock both with the alined faces of adjacent blocks in one of the groups and with the alined faces of opposing blocks in one or more other groups, thus preventing lateral separation of the blocks which they engage in the direction of their alined faces. By the arrangement of the doweling devices as shown in the drawings the parts of the panel become interlocked and held together independently of the floor or other base to which it is to be attached. A

It will be noted that in assembling the panel the groups of blocks or block strips, as they may be termed, are brought together in pairs alternatelj7 at the sides and ends of the panel-that is, two groups are brought together in one direction. The next two groups are forced against the previously-assembled groups in a direction at right angles to the direction in which the first two groups are brought together, and the third pair yof groups are brought against the assembled portion in the same direction as the first two groups, and so on. The serrated doweling strips which connect the al ternately-arranged groups extend alternately at right angles to one another. rlhe doweling-strips between the individual blocks in the successively-assembled groups it will be noted also extend at right angles to onel another' and all of the blocks in the panel are locked together in two directions by the doweling-strips. The adjacent blocks in any group may be connected together by means other than the toothed doweling-strips shown, the groups of blocks being connected by a toothed' doweling-strip; but I prefer to use the same form of doweling-strip throughout the panel, said strip having teeth or serrations along its opposite edges which pierce the adjacent blocks at several points and hol them firmly together.

In order to secure the completed panels to a iioor, the rpanels are preferably undercut along their lower edges, as indicated by the letter K, Figs. 2 and 3, so that they will t between and be held by strips L, secured parallel with one another upon the ooring i I do not wish to limit my claims to square or rectangular blocks, as the system of building up and tacking together the blocks may be employed with blocks which are not rectangular in form.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. An independent or segregable mosaic panel comprising a series of blocks and doweling devices engaging the opposed faces of abutting blocks and interlocking therewith, preventing relative movement between said blocks longitudinally of' their opposed faces, certain of said devices consisting of toothed metal strips engaging also the alined faces of adjoining blocks and interlocking therewith, some of said strips being arranged in directions transverse to that of others.

2. An independent or segregable mosaic panel comprising aseries of blocks and toothed metal Adoweling-strips engaging the opposed faces of abutting blocks and interlocking with the abutting blocks to prevent relative movement between said blocks longitudinally of their opposed faces, certain of said toothed strips engaging also the alined faces of adjoining blocks and interlocking therewith, and some of said latter strips being arranged in directions transverse to that of others.

3. In a mosaic, the combination with blocks arranged to form a panel of doweling devices driven into the meeting faces of contiguous blocks, said doweling devices comprising sheet-metal stri ps each having a series of teeth IOO IIO

IIS

or serrations along both lateral edges which penetrate the blocks.

4. The method of forming mosaics which consists in connecting blocks together by doweling devices to form groups of various lengths, connecting two of said groups together by an intermediate dowelingstrip having teeth engaging morethan one block in each group, to form a central portion for the panel, then building up the panel by Vsecuring groups of blocks alternately to the sides and ends of the previously-assembled portion of the panel by toothed doweling-strips each engaging two blocks in one group and a block in each of two adjoining groups.

5. The method of forming mosaics which consists in providing a centerpiece for the panel, and then building up the panel by securing groups of blocks alternately to the sides and ends of the previously-assembled portion 20 of the panel with toothed doweling-strips,each strip engaging blocks in three groups.

6. The method of forming mosaics which comprises providing a centerpiece for the panel and then building up the panel by securing strips of blocks alternately to the sides and ends of the previously-assembled portion` by doweling devices having teeth entering the meeting faces of the blocks in two or more contiguous strips.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.-

HERMAN AUGUST LITZ.

Witnesses: Y

CARL LITZ, A. H. GRoNE. 

